Safety device for portable firearms



Apr. 116, 1923.

Filed Feb. 10, 1921 Patented Apr. 10, 1923.

. STATES EDWARD LARSON, LERDALA, SWEDEN.

SAFETY DEVICE FOR PORTABLE FIREARMS.

Application filed February 10, 1921. Serial No. 448,989.

Tov all whom it may concern:

Be it known that I, EDWARD LARSON, .a subject of the King of Sweden,residing at Lerdala, Sweden, have invented certain new and usefulImprovement in Safety Devices for Portable Firearms, of which thefollowing is a specification.

The present. invention relates to safety devices for portable fire-armsof the kind in which members that normally lock the trigger, that istosay prevent the discharging movement thereof, are automaticallyreleased on seizing the handle of the stock at firing.

To make a safety device satisfacto every point of view, it has to besimp e so as not to get out of order, and it must not be renderedunserviceable throu h wear and tear, but on the contrary it s ouldalways be fit for action as long as the gun is capable of use in otherrespects, and further it must be so devised that the hammer cannot bereleasedby a shock to the gun, or by d'efects occurring in the searspring thereof.

In my opinion the safety devices of this kind as hereto-fore known donot comply with these requirements, which on the other hands are inevery respect met by the device forming the object of the present insovention.

Moreover, by the invention the exceedingly important advantage isattained in guns with invisible hammers, that it may be seen at oncefrom the position of the locking members if the hammer or the hammersare cocked, that is to say, if the shots have been fired.

Thus a gun with invisible hammers provided with a safety deviceaccording to the 40 present invention has the advantage of a gun withvisible hammers, in that it can be seen at once whether a hammer iscooked or not, simultaneously as the disadvantage inherent in guns wlthvisible hammers consisting in the hammers being easily acted upon byboughs and the like, is avoided. Furthermore, the advantage is attained,that the marksman, on having once charged the gun, can always see whichshot has been discharged and. which has not. This, certainly, is notpossible in guns with visible hammers, without the gun being opened.

An embodiment of the invention is illustrated in the accompanyingdrawing.

56 Fig. 1 shows the device in elevation, the

from

parts assuming the positions wherein hammer is under tension.

Fig. 2, likewise,is an elevation show the position of the parts afterthe discha1 Fig. 3 is a plan view of the device.

1 designates the trigger which is pivo to the stud 2. The hammer isdenoted by and the sear by 14. This sear cooper: with two lockingmembers which. are forr like levers, viz. an upper one'3, 4 and lowerone 5, 6, the said levers being pii ally mounted on the same stud 7 inthe ing of the gun lock. The lever 3, 4 is in form of a double-armedbell crank lever, outer arm 4 thereof projecting througl slot in the topof the handle of the st when the lever is in its locking posit (Fig. 1),whereas the other arm 3 of lever engages with its arch-shaped end 5 face16 over the lateral abutment 8 at rear end of the sear 14. The lever 5,i also shaped like a bell crank lever and I jects with its one arm 6through a slot the bottom of the handle of the stock, w] the inner arm 5of the lever engages wit nose 9 over the abutment 8 at the rear 1 of thesear 14. The lever 3, 4 is actuated the spring 10, and the lever 5, 6 bythe spr 11. These springs have a tendency to hr the said levers intolocking position.

The sear is so arranged that the rear 1 thereof assumes a lower position(Fig. when the hammer is cocked, and a hlg position when the hammer isuncooked.

The action of the device is as follows:

Referring to Fig. 1, which shows the p tion of the parts when the hammercocked, both levers 3, 4 and 5, 6 are actua when seizing the handle ofthe stock firing, in that their outer arms 4 and 6 spectively arepressed inwardly through pressure of the hand thereagainst. inner arm 3of the upper lever is then SW1 forward, so that the abutment 8 of the slooses the support of the curved end suri 16 of the said arm, and thelower love] swung rearward, so that the nose 9 ther is brought out ofengagement with the at ment 8.

Thus the sear is no longer locked by levers, but the shot may bedischarged pulling the trigger in known manner.

On the hammer being uncooked at the 1 charge of the shot the rear end ofthe s is brought upwards, the abutment 8 of then coming in contact withthe rear 2 12 of the arm 3, and also in contact I the part 16 of thefore edge of the r 5 above the nose 9. Thus the two levers retained inthe position into which they 2 brought on the release, and in which router arms are pressed into the stock, hat it may be seen at once thatthe hamis uncooked and the shot discharged.

n recocking the hammer the sear is lght back again to its lowerposition, and lockin members (the levers) again ase the locking positionunder the action xheir springs, the said members in this tion indicatingthat the hammer is red. The upper lever must be shaped arranged so thatthe two arms thereof approximately of the same weight.

n double-barrel guns which, as is known, e the widest use, there isarranged for 1 hammer and sear pertaining thereto, upper as well as alower locking sear, t is to say four levers in all. The two )ermostlevers are arranged side by side acent to each other, and, likewise, thelowermost levers are arranged in the aner indicated in Fig. 3.

Vhat I claim as new and desire to secure Letters Patent of the UnitedStates is A. safety device for guns, including a me, a hammer, means forholding the nmer in the cocking position, a trigger, members for lockingsaid trigger indeidently of each other, said locking mems each having apart projecting outside the handle of the stock so that the lockmembersare released on seizing the ck at firing, and means for causing saidking members to be locked automatically the released position after thedischarge. 5. A safety device for guns including a me, a hammer, a sear,a member locking d sear, means for releasing said locking mber onseizing the stock at firing, and ans for causing said locking member tolooked after the discharge automatically the released position, andmeans for rening the locking member automatically the locking positionon recocking the nmer. i. A safety device for guns, including a .me, ahammer, means for holding the nmer in the cocking position, means foreasing the hammer, means for locking (:1 releasing means, said lockingmeans ving a part projecting outside of the hanof the stock so that thelocking means released on seizing the stock at firing, :1 means forcausin said locking means be locked automatlcally in the released sitionafter the discharge, and means for urning the locking meansautomatically the locking position on recocking the mmer. t. A safetydevice for guns, including a frame, a hammer, means for holding thehammer in the cooking position, means for releasing the hammer, meansfor locking said releasing means, said locking means having a partprojecting outside of the handle of the stock so that the locking meansare released on seizing the stock at firing, and means for causing saidlocking means to be locked automatically in the released position afterthe discharge, said locking means consisting of two members, locking oneand the same sear independently of each other, the one member projectingoutside the upper surface of the stock in the locking position, whilethe other locking member projects outside the lower surface of thestock.

5. A safety device for'guns, including a frame, a hammer, a sear,assuming a lower position, when the hammer is cocked and a higherposition when the hammer is uncocked, a member locking said sear in thelower position, means for releasing said locking member automatically onseizing the stock at firing and means for causing the sear to lock saidlocking member automatically in the released position after the discharge, and means for returning the locking member automatically to thelocking position on recocking the hammer.

6. A safety device for guns, including a frame, a hammer, a sear, amember locking said sear, means for releasing said locking member onseizing the stock at firing, and means for causing said locking memberto be locked automatically in the released position after the discharge,said locking member consisting of a pivotally mounted bell crank memberthe one arm of which projects outside the handle of the stock, while theother arm of the lever cooperates with the sear.

7. A safety device for guns, including a frame, a hammer, a scar, amember locking said sear, means for releasing said locking member onseizing the stock at firing, said locking member consisting of apivotally mounted bell crank member, the outer arm of which projectsoutside the upper surface of the handle of the stock, while the innerarm in the locking position of the member grasps over a projection onthe sear, which projection, when the scar and the locking member arereleased holds the latter in the released position.

8. A safety device for guns, including" a frame, a hammer, a sear, amember locking said sear, means for releasing said locking member onseizing the stock at firing, said locking member consisting of apivotally' mounted bell crank lever, the outer end of which projectsoutside the lower surface of the handle of the stock, while the innerarm by means of a nose grasps over a projection on the sear, saidprojection in the released position of the sear and the said lockingmember holding this latter in the released position.

9. A safety device for guns, including a frame, a hammer, means forholding the hammer in the cooking position, means for releasing thehammer, means for locking said releasing means, said locking meanshaving a part projecting outside of the handle of the stock so that thelocking means are released on seizing the stock at firing, and means forcausing said locking means to be locked automatically in the releasedposition after the discharge, said locking means consisting of twolocking members pivotally mounted on the same stud.

10. A safety device for double barrel guns, including a frame, a hammer,means for holding the hammer in the vcocking po- 20 sition, means forreleasing the hammer,

means for locking said releasing means, said locking means having a partprojecting outside of the handle of the stock so that the locking meansare released on seizing the stock at firing, and means for causing saidlocking means to be locked automatically in the released position afterthe discharge, said locking means consisting of two sets of lockingmembers, a set for each of the guns, each set consisting of an upper anda lower member projecting respectively outside the upper surface and thelower surface of the stock.

In testimony whereof I aflix my signature in presence of two witnesses.

EDWARD LARSON.

Witnesses INEZ SwnNsoN, STINER LARSON.

